Liv Tyler went through a lot of 'difficult things' as a child

The 34-year-old actress - who was raised alternately by her model-and-singer mother Bebe Buell, aunt and grandmother, before discovering she was the daughter of Aerosmith rocker Steven Tyler at the age of 11 - admitted her unconventional upbringing has brought up a "tremendous amount of issues" to take into consideration when raising her own son, Milo, seven.

She said: "It's brought up a tremendous amount of issues, concerns and worries for me, being a mother and how much that meant to me based on my childhood and what I went through. Wonderful, beautiful things and difficult things.

"It was always a dream of mine to be a mother. I didn't really ever dream of being an actress. I always dreamed of being a mother ever since I was a young girl."

Before meeting her half-sister Mia backstage at an Aerosmith concert at the age of 11, the brunette beauty admitted she had always dreamed of having a twin.

Liv added in an interview with Marie Claire magazine: "I was by myself a lot [as a child], so I definitely talked to myself and made up my own games. I used to wish I had a twin really badly. I so wanted a twin. That's so strange. Then I met my twin.

"Maybe all the time I was missing Mia. But then I met Mia when I was 11 and she looks exactly like me. That is really weird."